Their service is a Flash app which plays an arbitrary FLV file on any server.
For example I can patch this URL of theirs for viewing Steve Garfield stuff on blip: http://www.myheavy.com/video.php?video_url=http%3A//blip.tv/file/get/Stevegarfield-BehindTheScenesJohnEdwardsYouTubeAndTheCampaignWebsite426.flv&video_title=Behind%20the%20Scenes%3A...&video_desc=&video_author_name=Blip%20TV&video_author_url=http%3A//blip.tv&video_thumb_url=http%3A//blip.tv/uploadedFiles/Stevegarfield-BehindTheScenesJohnEdwardsYouTubeAndTheCampaignWebsite586.jpg To use this third party FLV instead: http://www.mediacollege.com/video-gallery/testclips/barsandtone.flv Giving this completely functional URL: http://www.myheavy.com/video.php?video_url=http://www.mediacollege.com/video-gallery/testclips/barsandtone.flv&video_title=Behind%20the%20Scenes%3A...&video_desc=&video_author_name=Blip%20TV&video_author_url=http%3A//blip.tv&video_thumb_url=http%3A//blip.tv/uploadedFiles/Stevegarfield-BehindTheScenesJohnEdwardsYouTubeAndTheCampaignWebsite586.jpg To make this problem go away 100% blip.tv just needs to do a rewrite rule to block myheavy.com. This will do the job without a crazy lynch mob asking to extend the DMCA to be even more onerous and, given the blip guys' chops, will take less than ten minutes. The sky is not falling. Really.
